As shown in Figure REF ,it indicates that TextSnake [1]} and PAN [2]} can achieve more stable convergence, when evaluating under both IOU@0.5 and DetEval-v2. Meanwhile, TextSnake [1]} also shows faster convergence than other methods.Figure REF  also shows that the convergence of the model is dependent on the evaluation protocol. For example, DRRGN [4]} can achieve more stable convergence after about 200 epochs under IOU@0.5 than DetEval-v2.Generally speaking, the stability and speed of the model convergence also reflect the advantages of the model to some extent, which is usually ignored by existing scene text detectors.
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